Dahlia plant named ‘BKDAMAGYL’

ABSTRACT

A new and distinct cultivar of  Dahlia  plant named ‘BKDAMAGYL’, characterized by its upright plant habit; moderate basal branching habit; dense and bushy growth habit; large dark green-colored leaves; and large decorative type inflorescences with bright yellow-colored ray florets.

Botanical designation: Dahlia hybrida.

Cultivar denomination: ‘BKDAMAGYL’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Dahliaplant, botanically known as Dahlia hybrida and hereinafter referred toby the name ‘BKDAMAGYL’.

The new Dahlia plant is a product of a planned breeding programconducted by the Inventor in Hillegom, The Netherlands. The objective ofthe breeding program is to create new large container Dahlia plants withlarge and attractive decorative type inflorescences.

The new Dahlia plant originated from a cross-pollination in September,2013 in Hillegom, The Netherlands of a proprietary selection of Dahliahybrida identified as code number FET.S12.013.023, not patented, as thefemale, or seed, parent with a proprietary selection of Dahlia hybridaidentified as code number FET.S12.011.005, not patented, as the male, orpollen, parent. The new Dahlia plant was discovered and selected by theInventor as a single flowering plant from within the progeny of thestated cross-pollination in a controlled greenhouse environment inHillegom, The Netherlands in October, 2015.

Asexual reproduction of the new Dahlia plant by vegetative terminalcuttings in a controlled greenhouse environment in Maasdijk, TheNetherlands since February, 2016 has shown that the unique features ofthis new Dahlia plant are stable and reproduced true to type insuccessive generations.

SUMMARY OF THE INVENTION

Plants of the new Dahlia have not been observed under all possiblecombinations of environmental conditions and cultural conditions. Thephenotype may vary somewhat with variations in environmental conditionssuch as temperature and light intensity, without, however, any variancein genotype.

The following traits have been repeatedly observed and are determined tobe the unique characteristics of ‘BKDAMAGYL’. These characteristics incombination distinguish ‘BKDAMAGYL’ as a new and distinct Dahlia plant:

-   -   1. Upright plant habit.    -   2. Moderate basal branching habit; dense and bushy growth habit.    -   3. Large dark green-colored leaves.    -   4. Large decorative type inflorescences with bright        yellow-colored ray florets.

Plants of the new Dahlia differ primarily from plants of the femaleparent selection in the following characteristics:

-   -   1. Plants of the new Dahlia are taller than plants of the female        parent selection.    -   2. Inflorescences of plants of the new Dahlia are larger than        inflorescences of plants of the female parent selection.

Plants of the new Dahlia differ primarily from plants of the male parentselection in the following characteristics:

-   -   1. Plants of the new Dahlia are shorter than plants of the male        parent selection.    -   2. Ray florets of plants of the new Dahlia are bright yellow in        color whereas ray floret of plants of the male parent selection        are yellow orange in color.

Plants of the new Dahlia can be compared to plants of Dahlia hybrida‘XXL Durango’, not patented. In side-by-side comparisons, plants of thenew Dahlia differ from plants of ‘XXL Durango’ in the followingcharacteristics:

-   -   1. Inflorescences of plants of the new Dahlia are decorative in        form whereas inflorescences of plants of ‘XXL Durango’ are        “waterlily” in form.    -   2. Ray florets of plants of the new Dahlia are bright yellow in        color whereas ray florets of plants of ‘XXL Durango’ are paler        yellow in color.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the overall appearance of thenew Dahlia plant showing the colors as true as it is reasonably possibleto obtain in colored reproductions of this type. Colors in thephotographs may differ slightly from the color values cited in thedetailed botanical description which accurately describe the colors ofthe new Dahlia plant.

The photograph on the first sheet comprises a side perspective view of atypical flowering plant of ‘BKDAMAGYL’ grown in a container.

The photograph on the second sheet is a close-up view of a typicalinflorescence of ‘BKDAMAGYL’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and the following observations andmeasurements describe plants grown during the spring in 19-cm containersin a glass-covered greenhouse in Maasdijk, The Netherlands and undercultural practices typical of commercial Dahlia production. During theproduction of the plants, day and night temperatures ranged from 17° C.to 19° C. Plants were pinched one time and were 14 weeks old when thephotographs and description were taken. In the following description,color references are made to The Royal Horticultural Society ColourChart, 2015 Edition, except where general terms of ordinary dictionarysignificance are used.

-   Botanical classification: Dahlia hybrida ‘BKDAMAGYL’.-   Parentage:    -   -   Female, or seed, parent.—Proprietary selection of Dahlia            hybrida identified as code number FET.S12.013.023, not            patented.        -   Male, or pollen, parent.—Proprietary selection of Dahlia            hybrida identified as code number FET.S12.011.005, not            patented.-   Propagation:    -   -   Type.—By vegetative terminal cuttings.        -   Time to initiate roots, summer.—About 16 days at            temperatures ranging from 18° C. to 21° C.        -   Time to initiate roots, winter.—About 19 days at            temperatures ranging from 19° C. to 21° C.        -   Time to produce a rooted young plant, summer.—About 23 days            at temperatures ranging from 18° C. to 21° C.        -   Time to produce a rooted young plant, winter.—About 25 days            at temperatures ranging from 19° C. to 21° C.        -   Root description.—Medium in thickness, fibrous; typically            white in color, actual color of the roots is dependent on            substrate composition, water quality, fertilizers, substrate            temperature and physiological age of roots; tuber            development has not been observed on plants of the new            Dahlia.        -   Rooting habit.—Moderately freely branching; medium density.-   Plant description:    -   -   Plant and growth habit.—Upright and mounding plant form;            overall plant shape, globular; moderate basal branching            habit with about four primary branches each with about two            secondary branches developing per plant; inflorescences held            above and beyond the foliar plane on strong peduncles; bushy            and dense growth habit; pinching is not required but will            improve branching habit; moderately vigorous growth habit;            moderate growth rate.        -   Plant height, soil level to top of foliar plane.—About 33.4            cm.        -   Plant height, soil level to top of floral plane.—About 40.8            cm.        -   Plant diameter or spread.—About 50.3 cm.        -   Lateral branches.—Length: About 18.4 cm. Diameter: About            8 mm. Internode length: About 5.5 cm. Aspect: Primary            branches are about 40° from vertical; secondary branches,            about 30° from primary branch axis. Strength: Moderately            strong. Texture and luster: Smooth, glabrous; glossy. Color,            developing: Close to 144A. Color, developed: Close to            between 144A and 146C.-   Leaf & leaflet description:    -   -   Arrangement.—Leaves opposite and compound with three or five            leaflets.        -   Length, compound leaves.—About 15.8 cm.        -   Length, terminal leaflets.—About 14.1 cm.        -   Length, lateral leaflets.—About 10.1 cm.        -   Width, compound leaves.—About 18 cm.        -   Width, terminal leaflets.—About 6.7 cm.        -   Width, lateral leaflets.—About 4.4 cm.        -   Shape, compound leaves in overall outline.—Broadly ovate.        -   Shape, terminal leaflets.—Obovate.        -   Shape, lateral leaflets.—Elliptic to obovate.        -   Apex, leaflets.—Apiculate.        -   Base, terminal leaflets.—Long and narrowly attenuate.        -   Base, lateral leaflets.—Attenuate to long attenuate.        -   Margin, leaflets.—Coarsely serrate.        -   Venation pattern, leaflets.—Pinnate.        -   Texture and luster, upper surface, leaflets.—Smooth,            glabrous; slightly velvety; slightly glossy.        -   Texture and luster, lower surface, leaflets.—Mostly smooth            and glabrous; sparsely pubescent along venation; matte.        -   Color.—Developing leaflets, upper surface: Close to between            NN137A and 147A. Developing leaflets, lower surface: Close            to between 146B and 147B. Fully expanded leaflets, upper            surface: Close to between 147A and N189A; venation, close to            144A. Fully expanded leaflets, lower surface: Close to 191A;            venation, close to 146B.        -   Petioles, leaflets.—Length: About 5.2 cm. Diameter: About 4            mm by 4.5 mm. Strength: Moderately strong. Texture and            luster, upper and lower surfaces: Smooth, glabrous; glossy.            Color, upper and lower surfaces: Close to 144A.-   Inflorescence description:    -   -   Appearance and arrangement.—Large decorative type            inflorescences with ray and disc florets forming acropetally            on a receptacle; inflorescences positioned above and beyond            the foliar plane on strong peduncles; inflorescences face            mostly upright to slightly outwardly; freely flowering habit            with about 36 inflorescences developing per plant.        -   Fragrance.—None detected.        -   Flowering response and flowering period.—Plants begin            flowering about 84 days after planting; plants flower            continuously during the autumn into the winter in The            Netherlands.        -   Post-production longevity.—Inflorescences maintain good            substance for about ten days on the plant; inflorescences            persistent; plants maintain good substance for about three            months.        -   Inflorescence buds.—Height: About 1.5 cm. Diameter: About            1.6 cm. Shape: Flattened globular. Texture and luster:            Smooth, glabrous; glossy. Color: Close to 154A; fading            towards the base to close to 143A.        -   Inflorescence size.—Diameter: About 11.5 cm. Depth (height):            About 8.8 cm. Disc diameter: About 2 cm.        -   Receptacles.—Height: About 5 mm. Diameter: About 1 cm.            Shape: Dome-shaped. Color: Close to 145C.        -   Ray florets.—Quantity per inflorescence and arrangement:            About 120 arranged in about six whorls. Length: About            5.5 cm. Width: About 1.7 cm. Shape: Oblanceolate. Apex:            Broadly acute. Base: Cuneate. Margin: Entire. Aspect:            Varying from −40° to 40° from horizontal. Texture and            luster, upper and lower surfaces: Smooth, glabrous; velvety;            matte. Color: When opening, upper surface: Close to between            1A and 2A. When opening, lower surface: Close to 1A. Fully            opened, upper surface: Close to 1B; fading darker towards            the base to close to 1A; venation, similar to lamina colors;            color does not change with development. Fully opened, lower            surface: Close to 1B to 1C; fading darker towards the base            to close to 1B; venation, similar to lamina colors; color            does not change with development.        -   Disc florets.—Quantity per inflorescence and arrangement:            About 30 massed at the center of the inflorescence in about            five spiral whorls. Length: About 1.8 cm. Diameter: About            5.5 mm. Shape: Tubular, elongated; apices, acute. Texture            and luster, inner and outer surfaces: Smooth, glabrous;            glossy. Color, when opening, inner and outer surfaces:            Towards the apex, close to 15A; mid-section, close to 154B;            towards the base, close to 145D. Color, fully opened, inner            and outer surfaces: Towards the apex, close to 14A;            mid-section, close to 154B; towards the base, close to 145D;            colors do not change with development.        -   Phyllaries.—Quantity per inflorescence and arrangement:            About nine arranged in a single whorl. Length: About 1.3 cm.            Width: About 4.5 mm. Shape: Narrowly obovate. Apex: Broadly            acute. Base: Cuneate. Margin: Entire. Texture and luster,            upper and lower surfaces: Smooth, glabrous; moderately            glossy. Color, upper surface: Close to NN137B. Color, lower            surface: Close to NN137C.        -   Ray floret bracts.—Quantity per inflorescence and            arrangement: One subtending each ray floret. Length: About            1.9 cm. Width: About 5.5 mm. Shape: Oblong. Apex: Broadly            acute. Base: Broadly cuneate. Margin: Entire. Texture and            luster, upper and lower surfaces: Smooth, glabrous; glossy.            Color, upper and lower surfaces: Towards the apex, close to            150B; mid-section, close to N144D; towards the base, close            to 143A.        -   Peduncles.—Length, terminal peduncle: About 13 cm. Diameter,            terminal peduncle: About 3 mm. Strength: Strong. Texture and            luster: Smooth, glabrous; glossy. Color: Close to 144A.        -   Reproductive organs.—Androecium, present on disc florets            only: Quantity per floret: About five. Filament length:            About 5 mm. Filament color: Close to 150D. Anther shape:            Narrowly oblong. Anther length: About 5 mm. Anther diameter:            About 0.5 mm. Anther color: Close to between 12A and 13A.            Pollen amount: Moderate. Pollen color: Close to 23A.            Gynoecium, present on ray and disc florets: Quantity per            floret: One. Pistil length: About 1.4 cm. Style length:            About 3 mm. Style color: Close to 150C to 150D. Stigma            diameter: About 5.5 mm. Stigma shape: Cleft. Stigma color:            Close to 14A. Ovary color: Close to 145C. Seeds and fruits:            To date, seed and fruit development have not been observed            on plants of the new Dahlia.-   Disease & pest resistance: To date, plants of the new Dahlia have    not been observed to be resistant to pathogens and pests common to    Dahlia plants.-   Temperature tolerance: Plants of the new Dahlia have been observed    to tolerate high temperatures of about 35° C. and to be suitable for    USDA Hardiness Zones 9 to 11.

It is claimed:
 1. A new and distinct Dahlia plant named ‘BKDAMAGYL’ asillustrated and described.